Finding the Fourth Proportional to 12,577.98, 18,875.16 and 4,786.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,577.98 : 18,875.16 = 4,786.86 : x
2. Step 2: Convert to fraction form
   12,577.98/18,875.16 = 4,786.86/x
3. Step 3: Cross multiply
   12,577.98x = 18,875.16 × 4,786.86
4. Step 4: Simplify right side
   12,577.98x = 90,352,748.40
5. Step 5: Solve for x
   x = 90,352,748.40/12,577.98
6. Step 6: Final answer
   x = 7,183.41